Abstract
The following seven polypores were recorded on bamboo culms in Central Thailand: Flavodon flavus, Grammothele fuligo, Irpex lacteus, Perennoria bambusicola sp. nov., Piptoporus roseovinaceus sp. nov., Rigidoporus cf. lineatus, and Serpula similis. Perenniporia bambusicola is characterized by orange pores turning dark violet to black in KOH, orange mycelial strands and sheet and oblong, apically truncate basidiospores. A key to the world species of Perenniporia with resupinate basidiocarps and bright colored pore surface is provided. Piptoporus roseovinaceus is compared to P. soloniensis, but its hyphal system is monomitic in the trama while the latter has dimitic tubes.